# ![@fehu Avatar](https://lunarcrush.com/gi/w:26/cr:youtube::UCllxQlROHnOs7H7J_babxcA.png) @fehu FEHU-CPC

FEHU-CPC posts on YouTube about level, intro, link, cpc the most. They currently have [---] followers and [---] posts still getting attention that total [---] engagements in the last [--] hours.

### Engagements: [---] [#](/creator/youtube::UCllxQlROHnOs7H7J_babxcA/interactions)
![Engagements Line Chart](https://lunarcrush.com/gi/w:600/cr:youtube::UCllxQlROHnOs7H7J_babxcA/c:line/m:interactions.svg)

- [--] Week [---] +420%
- [--] Month [-----] +2,663%
- [--] Months [-----] -12%
- [--] Year [-----] +304%

### Mentions: [--] [#](/creator/youtube::UCllxQlROHnOs7H7J_babxcA/posts_active)
![Mentions Line Chart](https://lunarcrush.com/gi/w:600/cr:youtube::UCllxQlROHnOs7H7J_babxcA/c:line/m:posts_active.svg)


### Followers: [---] [#](/creator/youtube::UCllxQlROHnOs7H7J_babxcA/followers)
![Followers Line Chart](https://lunarcrush.com/gi/w:600/cr:youtube::UCllxQlROHnOs7H7J_babxcA/c:line/m:followers.svg)

- [--] Week [-----] +1.20%
- [--] Month [-----] +4.90%
- [--] Months [-----] +41%
- [--] Year [-----] +108%

### CreatorRank: [---------] [#](/creator/youtube::UCllxQlROHnOs7H7J_babxcA/influencer_rank)
![CreatorRank Line Chart](https://lunarcrush.com/gi/w:600/cr:youtube::UCllxQlROHnOs7H7J_babxcA/c:line/m:influencer_rank.svg)

### Social Influence

**Social category influence**
[technology brands](/list/technology-brands)  [social networks](/list/social-networks)  [stocks](/list/stocks)  [currencies](/list/currencies)  [finance](/list/finance) 

**Social topic influence**
[level](/topic/level), [intro](/topic/intro), [link](/topic/link), [cpc](/topic/cpc), [facebook](/topic/facebook), [community](/topic/community), [div](/topic/div), [wave](/topic/wave), [$googl](/topic/$googl), [search](/topic/search)

**Top assets mentioned**
[Alphabet Inc Class A (GOOGL)](/topic/$googl) [Linear (LINA)](/topic/linear) [Uber Technologies, Inc. (UBER)](/topic/$uber)
### Top Social Posts
Top posts by engagements in the last [--] hours

"L. Farmer John's Card Game Level [--] [----] - Upsolve Sheet [--] STLs (Linear Containers) ( Wave [--] )"  
[YouTube Link](https://youtube.com/watch?v=0exNwTaoKjY)  2025-02-14T11:00Z [---] followers, [--] engagements


"Day [--] - Solving CPC ACPC Kickoff [----] Problem M Problem Link: https://codeforces.com/group/Rilx5irOux/contest/528296/problem/M Community Facebook Page: https://www.facebook.com/ICPC.FEHU"  
[YouTube Link](https://youtube.com/watch?v=4hdd9oUgf0I)  2025-04-28T21:00Z [---] followers, [---] engagements


"B. From [--] to N Level [--] [----] - Upsolve Sheet [--] Recursion"  
[YouTube Link](https://youtube.com/watch?v=5kA4W6m-R8s)  2024-12-13T10:30Z [---] followers, [--] engagements


"P. Regular Bracket Sequence Level [--] [----] - Upsolve Sheet [--] STLs (Linear Containers)"  
[YouTube Link](https://youtube.com/watch?v=6DexQ5NFqdQ)  2025-02-14T11:00Z [---] followers, [--] engagements


"Level 1: Session [--] Bitmasks And Complete Search (Wave 2) 00:00 Introduction 01:54 Binary Numbers 20:34 Bitwise Operators 35:40 Properties & Applications of the OR Bitwise Operator 52:03 Properties & Applications of the AND Bitwise Operator 1:43:26 Properties & Applications of the XOR Bitwise Operator 2:17:14 Problem A: Creating Keys for StORages Has Become My Main Skill 2:34:07 Problem B: Serval and The Formula 2:49:37 Prefix OR 3:16:14 Prefix AND 3:22:22 Problem C: Iva & Pav 3:42:00 Complete Search with Bitmasking 3:46:20 Problem D: Preparing Olympiad 4:04:17 Bitset Functions 4:16:03 Thanks"  
[YouTube Link](https://youtube.com/watch?v=6oVTwcZfxQI)  2025-04-13T15:28Z [---] followers, [---] engagements


"D. Plug in Level [--] [----] - Upsolve Sheet [--] STLs (Linear Containers)"  
[YouTube Link](https://youtube.com/watch?v=6v748U_YSUY)  2025-02-14T11:00Z [---] followers, [--] engagements


"Codeforces Round [----] (Div 4) - A to F"  
[YouTube Link](https://youtube.com/watch?v=7Ub2qR6mFCQ)  2025-04-29T15:24Z [---] followers, [---] engagements


"F. Pick the candies Level [--] [----] - Upsolve Sheet [--] STLs (Linear Containers)"  
[YouTube Link](https://youtube.com/watch?v=8ETylGysH6o)  2025-02-14T11:00Z [---] followers, [--] engagements


"Level [--] [----] Wave [--] - Upsolve Contest [--] Bitmasks Intro 0:00 Problem A. Mohandes Basmagyat 0:20 Problem B. Multiversal Xor 0:58 Problem C. Message Decoder 19:28 Problem D. Bitwise 3B3ATY 26:55 Problem E. Space Explorer 38:32"  
[YouTube Link](https://youtube.com/watch?v=8OsQOpoD5ao)  2025-04-28T12:43Z [---] followers, [--] engagements


"Day [--] - Solving CPC ECPC Qualifications [----] Day [--] Problem D Problem Link : https://codeforces.com/group/Rilx5irOux/contest/538517/problem/D Community Facebook Page: https://www.facebook.com/ICPC.FEHU"  
[YouTube Link](https://youtube.com/watch?v=A04X6XWYtjM)  2025-05-03T21:00Z [----] followers, [---] engagements


"S. Amazing cave Level [--] [----] - Upsolve Sheet [--] Data Types and Conditions ( Wave [--] )"  
[YouTube Link](https://youtube.com/watch?v=AD5-H4bKkBo)  2025-02-14T10:00Z [---] followers, [--] engagements


"How to pay ECPC team fees"  
[YouTube Link](https://youtube.com/watch?v=AbaPfyQ5KZQ)  2025-04-26T17:12Z [---] followers, [---] engagements


"V. Can Guess the Data Structure Level [--] [----] - Upsolve Sheet [--] STLs (Linear Containers)"  
[YouTube Link](https://youtube.com/watch?v=AknpG0nclz8)  2025-02-14T11:00Z [---] followers, [--] engagements


"How to Register in The ACPC Kickoff Contest https://icpc.global/regionals/finder/ACPCKickoff-2026 Community Facebook Page: https://www.facebook.com/ICPC.FEHU"  
[YouTube Link](https://youtube.com/watch?v=BhdqMSWKutM)  2025-04-11T19:43Z [---] followers, [--] engagements


"Day [--] Solving CPC ACPC [----] Problem A Problem Link: https://codeforces.com/group/Rilx5irOux/contest/511452/problem/A Solution: https://ideone.com/dqkz8x"  
[YouTube Link](https://youtube.com/watch?v=BiTcxOavEko)  2025-06-27T21:00Z [----] followers, [--] engagements


"Day [--] - Solving CPC ECPC Qualifications [----] Day [--] Problem M Problem Link: https://codeforces.com/group/Rilx5irOux/contest/538271/problem/M Community Facebook Page: https://www.facebook.com/ICPC.FEHU"  
[YouTube Link](https://youtube.com/watch?v=CRgYF8A7M_I)  2025-04-29T21:47Z [---] followers, [---] engagements


"O. Ada and Queue Level [--] [----] - Upsolve Sheet [--] STLs (Linear Containers)"  
[YouTube Link](https://youtube.com/watch?v=FMmj8WKd2OA)  2025-02-14T11:00Z [---] followers, [--] engagements


"S. YetnotherrokenKeoard Level [--] [----] - Upsolve Sheet [--] STLs (Linear Containers)"  
[YouTube Link](https://youtube.com/watch?v=Fbsag0aYaiE)  2025-02-14T11:00Z [---] followers, [--] engagements


"Upsolve Sheet [--] - Two Pointers and Adhocs Level [--] [----] ( Wave [--] )"  
[YouTube Link](https://youtube.com/watch?v=GmrgmIOXXSI)  2025-05-06T07:07Z [----] followers, [---] engagements


"O. Multiples Level [--] [----] - Upsolve Sheet [--] Data Types & Conditions ( Wave [--] )"  
[YouTube Link](https://youtube.com/watch?v=HUFAa0tRJR8)  2025-02-14T10:00Z [---] followers, [--] engagements


"ECPC Contest: Why You Should Join 0:00 Intro 1:22 Joining ECPC & Challenges 6:55 ECPC Details & Problems 20:55 I'm not good enough 22:58 Team Formation preparations & Camp sheets 40:55 Time is short for preparation 45:21 ECPC preparation 1:04:16 Qualifying in ECPC 1:30:47 Outro Level [--] Camp sheet: https://vjudge.net/contest/705554 Level [--] Camp sheet: https://codeforces.com/group/FxRb3fkQll/contest/599724 Community Facebook Page: https://www.facebook.com/ICPC.FEHU"  
[YouTube Link](https://youtube.com/watch?v=IAE45pHW0kM)  2025-04-04T17:16Z [---] followers, [---] engagements


"G. pushpush Level [--] [----] - Upsolve Sheet [--] STLs (Linear Containers)"  
[YouTube Link](https://youtube.com/watch?v=I_p2TUIqF4E)  2025-02-14T11:00Z [---] followers, [--] engagements


"T. Give Me This Pizza Level [--] [----] - Upsolve Sheet [--] STLs (Linear Containers)"  
[YouTube Link](https://youtube.com/watch?v=JWj8CfqPW_8)  2025-02-14T11:00Z [---] followers, [--] engagements


"Level 0: session [--] Data Types and Conditions (Wave 2) slides link : "https://drive.google.com/drive/folders/1yDlaWPtvx9z2XBJrkZuzXyIXy_Qvc_7musp=drive_link" 0:00 Introduction 5:50 ECPC 10:15 Problem Solving 12:17 Why C++ 16:35 C++ Structure 20:36 Data Types 58:00 Codeforces 59:50 Problem A 1:06:55 Sum From [--] to N 1:14:50 Problem B 1:30:15 Modulus 1:43:00 ASCII Table 1:44:40 Type Casting 1:47:30 Prefix Vs Postfix 1:54:00 Problem C 2:14:43 IF Statement 2:21:00 Problem D 2:26:55 IF-ELSE-IF 2:27:50 Nested IF 2:29:20 Switch 2:35:30 Ternary Operator 2:50:15 Problem E 3:06:35 Cmath Library 3:15:35"  
[YouTube Link](https://youtube.com/watch?v=KWnvigRd-PE)  2025-02-09T09:23Z [---] followers, [---] engagements


"Level [--] [----] Wave [--] - Upsolve Sheet [--] Functions & Recursion Timestamps for Problems: Intro: 00:00 Problem A. Print: 00:06 Problem B. Prime Function: 02:47 Problem C. Wonderful Number: 10:00 Problem D. Exponential Series: 16:37 Problem E. Array Min-Max: 20:30 Problem F. Character Printing: 26:01 Problem G. Shift Right: 30:38 Problem H. Amr with Distinct: 39:57 Problem I. Shifting Zeros: 48:11 Problem J. Five in One: 57:27 Problem K. Print Even Indices: 1:19:18 Problem L. Summation: 1:24:37 Problem M. Digits Print: 1:28:54 Problem N. Fibonacci: 1:31:20 Problem O. Skibidi Table: 1:34:56 Problem"  
[YouTube Link](https://youtube.com/watch?v=KxsnA3ugzuc)  2025-04-29T14:39Z [---] followers, [--] engagements


"Level [--] [----] Wave [--] - Upsolve Contest [--] Binary Search Intro: 0:00 Problem A.Equality: 0:26 Problem B.Folka and the hidden number: 3:00 Problem C.sum serach: 12:16 Problem D.solo leveling: 19:31 Problem E.secret number 30:50 Community Facebook Page: https://www.facebook.com/ICPC.FEHU"  
[YouTube Link](https://youtube.com/watch?v=Lsqjs4leRk8)  2025-04-11T17:14Z [---] followers, [--] engagements


"Orientation Session'26 🟢 Intro & Background 00:00 Introduction 00:29 Who is Ashraf Taha 🧠 Problem Solving & Competitive Programming 02:04 What is problem solving 03:23 What is competitive programming 04:16 Problem solver vs. competitive programmer 06:41 What is ICPC 🚀 Getting Started 08:07 How to start with problem solving 10:46 What is Codeforces (Divisions explained) 13:27 Is rating really important 🤖 Future & Relevance 15:07 Can AI replace problem solvers 19:00 Technology vs. Problem Solving ⚖ Balance & Timing 28:50 When to say "enough" 30:00 Can I start problem solving at graduation"  
[YouTube Link](https://youtube.com/watch?v=NMCl364yKx0)  2025-09-14T14:57Z [----] followers, [---] engagements


"I. Dragons Level [--] [----] - Upsolve Sheet [--] STLs Linear Containers"  
[YouTube Link](https://youtube.com/watch?v=NSCsHH5aQhE)  2025-02-14T11:00Z [---] followers, [--] engagements


"Level [--] [----] Wave [--] - Upsolve Contest [--] STL (Non Linear Containers) 0:00 Intro 0:53 Problem A : Batman is Not in Helwan 4:12 Problem B : Ibn Al-Haitham 14:26 Problem C : Merlin's Potion Lab 23:49 Problem D : Marmoush 50:58 Problem E : Problem setting on the Metro 1:16:27 Ending & Thanks"  
[YouTube Link](https://youtube.com/watch?v=OUtgUnc-q4g)  2025-03-03T07:58Z [---] followers, [--] engagements


"ZB. A TRUE Battle Level [--] [----] - Upsolve Sheet [--] Arrays & Strings"  
[YouTube Link](https://youtube.com/watch?v=PE3NbzyiCyk)  2024-10-31T09:00Z [---] followers, [--] engagements


"Level [--] [----] Wave [--] - Upsolve Contest [--] Number Theory Timestamps for Problems: 00:00 Intro 00:35 Problem A 02:00 Problem B 07:25 Problem C 26:48 Problem D 36:18 Problem E"  
[YouTube Link](https://youtube.com/watch?v=PqDk8UL4Aqk)  2025-03-08T15:34Z [---] followers, [--] engagements


"Day [--] - Solving CPC ECPC Qualifications [----] Day [--] Problem J Problem link : https://codeforces.com/group/Rilx5irOux/contest/538517/problem/J Community Facebook Page: https://www.facebook.com/ICPC.FEHU"  
[YouTube Link](https://youtube.com/watch?v=Pqta6sIvxp8)  2025-05-01T21:00Z [----] followers, [---] engagements


"Day [--] - Solving CPC ECPC [----] Problem B Problem Link : https://codeforces.com/group/Rilx5irOux/contest/477878/problem/B Community Facebook Page: https://www.facebook.com/ICPC.FEHU"  
[YouTube Link](https://youtube.com/watch?v=RY-zccewBqw)  2025-05-05T01:06Z [----] followers, [---] engagements


"D Treasure Division Level [--] [----] - Upsolve Contest [--] Ad-Hocs"  
[YouTube Link](https://youtube.com/watch?v=RhHqWUVyqa4)  2024-12-01T11:55Z [---] followers, [--] engagements


"Upsolve Sheet [--] - STLs [--] ( Linear Containers ) Level [--] [----] ( Wave [--] ) Intro: 00:00 Problem A. Sereja and Dima: 00:06 Problem B. Odd Swap Sort: 14:28 Problem C. Permutation Minimization by Deque: 26:18 Problem D. Plug-in: 39:53 Problem E. Yet Another Card Deck: 50:46 Problem F. Pick the Candies: 58:29 Problem G. pushpush: 1:05:57 Problem H. 2D-SORT: 1:16:03 Problem I. Dragons: 1:27:24 Problem J. Showering: 1:35:06 Problem K. Han Solo and Lazer Gun: 1:44:17 Problem L. Farmer John's Card Game: 1:56:07 Problem M. Pairs: 2:12:29 Problem N. Incinerate: 2:24:14 Problem O. Ada and Queue: 2:34:36"  
[YouTube Link](https://youtube.com/watch?v=S37rwP0rpkg)  2025-03-28T14:52Z [----] followers, [--] engagements


"Day [--] Solving CPC ECPC Qualifications [----] Day [--] Problem B Problem Link: https://codeforces.com/group/Rilx5irOux/contest/534682/problem/B Solution: https://ideone.com/CBQrqh"  
[YouTube Link](https://youtube.com/watch?v=U7TkIFdtMOk)  2025-06-25T21:00Z [----] followers, [--] engagements


"ECPC Preparations : How to Think Solve and Win as a Team 00:00 Introduction of the guest 01:32 How individuals prepare for ECPC 14:17 Team preparation strategies 21:00 Solving problems as a team in the gym 24:41 At the start of the contest 49:45 In the middle of the contest 56:25 The blind hour 1:02:15 Handling different contest scenarios 1:19:40 Memorable ECPC moments Community Facebook Page: https://www.facebook.com/ICPC.FEHU"  
[YouTube Link](https://youtube.com/watch?v=U8vRSRtH1BI)  2025-07-21T14:39Z [----] followers, [----] engagements


"E. Yet Another Card Deck Level [--] [----] - Upsolve Sheet [--] STLs (Linear Containers)"  
[YouTube Link](https://youtube.com/watch?v=USNAlUvzGf0)  2025-02-14T11:00Z [---] followers, [--] engagements


"Level [--] [----] Wave [--] - Upsolve Contest [--] Ad-Hocs Intro: 0:00 Problem A.Inception dream sequence: 0:06 Problem B.Atef and Enshrah: 1:21 Problem C.Seif the Brave Knight: 7:01 Problem D.Bakkar's Market Day: 11:51 Problem E.Fatta street: 14:27 Problem F.Candy Clash: 21:32 Community Facebook Page: https://www.facebook.com/ICPC.FEHU"  
[YouTube Link](https://youtube.com/watch?v=UXNJ9mYJ5Js)  2025-04-12T21:43Z [---] followers, [--] engagements


"New Series : Daily CPC Solves Community Facebook Page: https://www.facebook.com/ICPC.FEHU"  
[YouTube Link](https://youtube.com/watch?v=WA7tvY0dTQM)  2025-04-28T17:22Z [---] followers, [---] engagements


"Day [--] - Solving CPC ECPC Qualifications [----] Day [--] Problem H Problem Link: https://codeforces.com/group/Rilx5irOux/contest/538098/problem/H Community Facebook Page: https://www.facebook.com/ICPC.FEHU"  
[YouTube Link](https://youtube.com/watch?v=Wq02wPToCWI)  2025-04-30T22:08Z [----] followers, [---] engagements


"Upsolve Sheet [--] - Number Theory Level [--] [----] ( Wave [--] ) Timestamps for Problems: Intro: 0:00 Problem A.Minimal Coprime: 0:07 Problem B.Maximize: 14:39 Problem C.GCD Arrays: 18:46 Problem D.GCD Problem: 41:29 Problem E.Counting Divisors: 59:04 Problem F.PerfectPerfect: 1:05:10 Problem G.Woeful Permutation: 1:13:28 Problem H.Odd Divisor: 1:18:48 Problem I.Sherlock and his girlfriend: 1:24:50 Problem J.k-th divisor: 1:43:07 Problem K.Almost Prime: 1:59:10 Problem L.T-primes: 2:12:25 Problem M.Chef and Semi-Primes: 2:21:48 Problem N.Factorial Factors: 2:37:30 Problem O.Minimum LCM: 2:46:53"  
[YouTube Link](https://youtube.com/watch?v=Zil1AdOcr0Y)  2025-03-06T18:32Z [---] followers, [--] engagements


"R. Two Brackets Level [--] [----] - Upsolve Sheet [--] STLs (Linear Containers)"  
[YouTube Link](https://youtube.com/watch?v=_gJX4R9Vkz8)  2025-02-14T11:00Z [---] followers, [--] engagements


"L. Following the String Level [--] [----] - Upsolve Sheet [--] Ad-Hocs"  
[YouTube Link](https://youtube.com/watch?v=aUCQgycnlv0)  2024-11-29T08:30Z [---] followers, [--] engagements


"J.Showering Level [--] [----] - Upsolve Sheet [--] STLs (Linear Containers) ( Wave [--] )"  
[YouTube Link](https://youtube.com/watch?v=auUnAjEYiaI)  2025-02-14T11:00Z [---] followers, [--] engagements


"Day [--] Solving CPC ECPC [----] Problem G problem link : https://codeforces.com/group/Rilx5irOux/contest/479246/problem/G"  
[YouTube Link](https://youtube.com/watch?v=bhYIxavOtzQ)  2025-06-28T21:00Z [----] followers, [---] engagements


"Upsolve Sheet [--] - Binary Search Level [--] [----] ( Wave [--] ) Timestamps for Problems: Intro: 00:00 Problem A. Queries about less or equal elements: 00:06 Problem B. Balanced Team: 04:10 Problem C. Worms: 12:35 Problem D. Eating Queries: 19:36 Problem E. Factory Machines: 29:16 Problem F. Sport Mafia: 38:39 Problem G. Robin Hood in Town: 53:50 Problem H. Cardboard for Pictures: 1:08:42 Problem I. Scuza: 1:24:07 Problem J. Place of the Olympiad: 1:41:28 Problem K. Final Boss: 1:59:10 Problem L. Interview: 2:18:12 Problem M. The Strict Teacher (Hard Version): 2:34:31 Problem N. Skibidus and Fanum Tax"  
[YouTube Link](https://youtube.com/watch?v=dZSArTr3vkw)  2025-04-09T23:26Z [---] followers, [--] engagements


"Level [--] [----] - Upsolve Contest [--] STL (Linear Containers) 00:00 Intro 00:06 Problem A 02:55 Problem B 14:53 Problem C 23:21 Problem D 36:02 Problem E 42:38 Problem F 49:14 Outro"  
[YouTube Link](https://youtube.com/watch?v=dh23Zy0Giyo)  2025-10-03T11:59Z [----] followers, [---] engagements


"V. The Numbers Level [--] [----] - Upsolve Sheet [--] Ad-Hocs"  
[YouTube Link](https://youtube.com/watch?v=edPY11_TFL8)  2024-11-29T08:30Z [---] followers, [--] engagements


"Level 1: Session [--] Two pointers & Ad-Hocs (Wave 2) Intro to Two pointers: 0:00 Is_Palindrome: 23:00 Problem A.Right Left Wrong : 29:16 Sliding Window "fixed size": 54:50 Problem B.Inaccurate Subsequence Search : 1:13:00 Horror House "easy version" : 1:48:48 Partial Sum : 2:03:35 2D Pref Sum : 2:16:50 2D Partial Sum : 2:41:35 Problem C.Photoshoot for Gorillas: 2:58:42 Final Advice & Conclusion : 3:20:45"  
[YouTube Link](https://youtube.com/watch?v=eiOnw0xGN0U)  2025-04-25T10:23Z [---] followers, [---] engagements


"Level [--] [----] - Upsolve Contest [--] Arrays && Strings 00:00 Intro 00:06 Problem A 01:55 Problem B 11:35 Problem C 20:30 Problem D 31:40 Problem E 42:13 Problem F"  
[YouTube Link](https://youtube.com/watch?v=f2Dfa2hlcBM)  2025-10-14T21:39Z [----] followers, [---] engagements


"Day [--] - Solving CPC ECPC [----] Problem L Statement Link: https://codeforces.com/group/Rilx5irOux/contest/477876/problem/L Submission Link: https://codeforces.com/group/Rilx5irOux/contest/477876/submit Solution: https://ideone.com/WItAnL"  
[YouTube Link](https://youtube.com/watch?v=fv-vqnOW3Rc)  2025-06-23T21:22Z [----] followers, [--] engagements


"Level 1: Session [--] Binary & Ternary Search - Interactive Problems (Wave 2) 0:00 - Intro 3:30 - Lambda Functions 24:35 - Binary Search 1:04:26 - upper_bound & lower_bound STL Functions 1:14:55 - Problem A: Interesting Drink 1:31:05 - Monotonicity in Binary Search & Bitonic Sequence 1:58:58 - Problem B: Magic Power (Hard Version) 2:21:29 - Problem C: Limited Repainting (Codeforces 2070C) 2:51:45 - Ternary Search 3:22:54 - Unimodal Function in Ternary Search 3:40:54 - Problem D: Motarack's Birthday 4:03:13 - Interactive Problems 4:10:52 - Problem E: Guess the Number 4:21:01 - Final Advice &"  
[YouTube Link](https://youtube.com/watch?v=gBFq2ctK58g)  2025-03-09T12:37Z [---] followers, [---] engagements


"Level [--] [----] Wave [--] - Upsolve Sheet [--] Array & Strings Timestamps for Problems: Intro : 0:00 Problem A. Searching : 0:06 Problem B. Positions in array : 5:00 Problem C. Lowest Number : 9:04 Problem D. Interesting Task : 15:11 Problem E. Helwan Microbus : 23:44 Problem F. Reversing : 29:18 Problem G. English Test : 32:32 Problem H. Palindrome : 35:45 Problem I. Is Matched : 43:08 Problem J. Secret Code : 49:55 Problem K. Lucky Array : 52:36 Problem L. Create A New String : 55:13 Problem M. Compare : 57:09 Problem N. Remove X : 59:48 Problem O. Stones : 1:03:08 Problem P. Drive-Thru : 1:07:15"  
[YouTube Link](https://youtube.com/watch?v=gLD_EURw8Wk)  2025-03-03T19:27Z [---] followers, [--] engagements


"Upsolve Sheet [--] - Bitmasks and Complete Search Level [--] [----] ( Wave [--] ) Timestamps for problems: Intro: 00:00 Problem A. Find Minimum Operations: 00:06 Problem B. XOR Mixup: 09:57 Problem C. NIT orz: 18:05 Problem D. Cirno's Perfect Bitmasks Classroom: 24:04 Problem E. XORwice: 35:09 Problem F. And Then There Were K: 43:44 Problem G. Bitwise Operators: 51:13 Problem H. AND Sorting: 1:01:53 Problem I. XOR and Triangle: 1:10:05 Problem J. XOR Palindromes: 1:14:55 Problem K. Boneca Ambalabu: 1:32:40 Problem L. Shohag Loves XOR (Easy Version): 1:44:21 Problem M. Dreamoon and WiFi: 1:50:13 Problem"  
[YouTube Link](https://youtube.com/watch?v=gdRwK4OtQBE)  2025-04-29T16:54Z [---] followers, [---] engagements


"Level [--] [----] Wave [--] - Upsolve Sheet [--] Ad-Hocs Timestamp for Problems: Intro: 00:00 Problem A. Unique Set of Numbers: 00:06 Problem B. String Obsession: 07:08 Problem C. Garland: 13:04 Problem D. Smallest Difference: 25:02 Problem E. Anton and Letters: 32:43 Problem F. Kuriyama Mirai's Stones: 42:27 Problem G. Different is Good: 59:36 Problem H. Tomatoes Business: 1:09:32 Problem I. Ranking: 1:15:22 Problem J. Favorite Sequence: 1:20:16 Problem K. Witch's Sandwiches: 1:28:56 Problem L. Wasted Time 2: The sequel: 1:35:44 Problem M. Organized Robbery: 1:42:12 Problem N. Queries of Gom3a: 1:55:07"  
[YouTube Link](https://youtube.com/watch?v=gxOgAdzRL44)  2025-04-05T11:09Z [---] followers, [--] engagements


"Day [--] Solving CPC ECPC Qualifications [----] Day [--] Problem C problem link : https://codeforces.com/group/Rilx5irOux/contest/530045/problem/C"  
[YouTube Link](https://youtube.com/watch?v=hpszx2atcQM)  2025-06-26T21:00Z [----] followers, [--] engagements


"Level [--] [----] - Upsolve Contest [--] STLs [--] 00:00 Intro 00:06 Problem A 02:07 Problem B 12:37 Problem C 15:54 Problem D 21:25 Problem E 25:57 Problem F"  
[YouTube Link](https://youtube.com/watch?v=iPo2WFDavlo)  2025-10-09T18:15Z [----] followers, [--] engagements


"Level 0: Session [--] Ad-Hocs (Wave 2) Group Link on Codeforces : https://codeforces.com/group/FxRb3fkQll/contests Slides : https://www.canva.com/design/DAGWuvm0jRc/CHkj8gLxjJ2SZC1CYiKfqA/editutm_content=DAGWuvm0jRc&utm_campaign=designshare&utm_medium=link2&utm_source=sharebutton 0:00 Intro 1:20 Frequency Array on Numbers 25:04 Frequency Array on Char 39:58 Problem A 53:34 Counting Sort 1:00:50 Problem B 1:10:50 Disadvantages of Frequency Array 1:13:55 Visited Array 1:24:50 Problem C 2:08:40 1D Prefix Sum 2:37:50 Problem D 2:55:06 1D Suffix Sum 2:59:10 Problem E"  
[YouTube Link](https://youtube.com/watch?v=iQvvcxYRiBM)  2025-03-05T07:09Z [---] followers, [--] engagements


"Level [--] [----] - Upsolve Contest [--] Data Types & Conditions 00:00 Intro 00:15 Problem A 00:49 Problem B 4:45 Problem C 17:52 Problem D 26:37 Problem E 34:36 Problem F 50:27 Outro"  
[YouTube Link](https://youtube.com/watch?v=jOG7nFFdSTw)  2025-09-30T21:09Z [----] followers, [---] engagements


"Level 2: session [--] Graph-DFS 0:00 Introduction into Graph 14:35 Graph Representation 21:47 Trees 28:38 DFS 55:03 Cycle Detection in Undirected Graph 1:31:55 Problem: Is it a Tree 1:43:44 Problem: Counting rooms 2:11:47 Problem: White Black Balanced subtrees 2:45:30 Topological Sort Public Training Sheet: https://vjudge.net/group/fehu-cpc-level-2-public Community Facebook Page: https://www.facebook.com/ICPC.FEHU Community LinkedIn Page: https://www.linkedin.com/company/icpcfehu/posts/feedView=all"  
[YouTube Link](https://youtube.com/watch?v=kh78JwE0qNU)  2024-10-16T13:47Z [----] followers, [---] engagements


"C. Permutation Minimization Level [--] [----] - Upsolve Sheet [--] STLs (Linear Containers)"  
[YouTube Link](https://youtube.com/watch?v=mVpaWjFQegk)  2025-02-14T11:01Z [---] followers, [--] engagements


"Level 2: session [--] DSU with Rollback & MST Session Timeline: 0:00 intro 5:14 DSU Union By rank 30:28 Path Compression 49:03 DSU Union By size 1:07:00 DSU Code 1:28:45 Problem: (Road Construction - CSES) 1:36:02 Problem: (Closing the Farm - USACO) 2:00:50 Minimum Spanning Tree (MST) 2:16:08 Problem: (Road Preparation - CSES) 2:23:58 DSU with Rollback 2:41:14 Rollback Code 2:54:41 Problem: (DSU with rollback - Codeforces edu) DSU Template: https://ideone.com/Sm0eHq Problems: Road Construction: https://cses.fi/problemset/task/1676 Solution: https://cses.fi/paste/2b76467203921a1fbb2f23/ Closing"  
[YouTube Link](https://youtube.com/watch?v=mlcFWwDIqOI)  2025-03-07T13:12Z [---] followers, [--] engagements


"Day [--] - Solving CPC ECPC [----] Problem A Problem link : https://codeforces.com/group/Rilx5irOux/contest/477878/problem/A Community Facebook Page: https://www.facebook.com/ICPC.FEHU"  
[YouTube Link](https://youtube.com/watch?v=nPNS_VLQaFA)  2025-05-02T21:01Z [----] followers, [---] engagements


"X. Sort Numbers Level [--] [----] - Upsolve Sheet [--] Data Types and Conditions ( Wave [--] )"  
[YouTube Link](https://youtube.com/watch?v=nTP0ZDPhDNE)  2025-02-14T10:00Z [---] followers, [--] engagements


"M. Pairs Level [--] [----] - Upsolve Sheet [--] STLs (Linear Containers) ( Wave [--] )"  
[YouTube Link](https://youtube.com/watch?v=ncf_73EMSTs)  2025-02-14T11:01Z [---] followers, [--] engagements


"Q. Backspace Level [--] [----] - Upsolve Sheet [--] STLs (Linear Containers)"  
[YouTube Link](https://youtube.com/watch?v=pPuybJ6YtDw)  2025-02-14T12:55Z [---] followers, [--] engagements


"Road to Google FEHU-CPC community opening Problem Solving For Success Time Code: Welcome & Opening Remarks - 0:00 Helal's Introduction & Career Journey - 2:58 Google Interviews and Problem-Solving Skills - 7:00 The Value of Competitive Programming - 11:25 Is It Impossible to Reach Google - 13:33 Google Salary - 15:32 Projects vs. Problem Solving: What's More Important - 16:45 Typical Interview Problem Types - 20:30 Problem Solving and Writing Clean Code - 21:39 Why Do Big Companies Value Problem Solvers - 24:29 Balancing Career Development with Academic Life - 27:04 Is Problem Solving"  
[YouTube Link](https://youtube.com/watch?v=q-vn71t8Dqo)  2024-09-23T14:28Z [----] followers, [----] engagements


"Level [--] Kickoff '26 Training & Mindset Plan Codeforces 00:00 Intro 01:54 The Community System 35:50 Dealing with Codeforces 57:30 The Problem Solver Mindset 1:46:07 Level [--] content 1:49:21 Planning Your Time Effectively"  
[YouTube Link](https://youtube.com/watch?v=qVoLA6Cadmk)  2025-09-23T12:56Z [----] followers, [---] engagements


"Z. The Maze Level [--] [----] - Upsolve Sheet [--] Data Types and Conditions ( Wave [--] )"  
[YouTube Link](https://youtube.com/watch?v=qs5cLJmjCU0)  2025-02-14T10:00Z [---] followers, [--] engagements


"Day [--] - Solving CPC ACPC [----] Problem G Problem Link : https://codeforces.com/group/Rilx5irOux/contest/572352/problem/G"  
[YouTube Link](https://youtube.com/watch?v=qsEFOMdhw_E)  2025-06-22T20:59Z [----] followers, [---] engagements


"How to create an account on ICPC Global https://icpc.global/ T-shirts size guide: https://drive.google.com/file/d/1nBFOi0emRiqZIpbtyiH55fil8VKjd3O1/viewusp=sharing Community Facebook Page: https://www.facebook.com/ICPC.FEHU"  
[YouTube Link](https://youtube.com/watch?v=ssmrHukNZDQ)  2025-04-11T19:43Z [---] followers, [--] engagements


"Day [--] Solving CPC ECPC Qualifications [----] Day [--] Problem E problem Link : https://codeforces.com/group/Rilx5irOux/contest/538271/problem/E"  
[YouTube Link](https://youtube.com/watch?v=tfYebwgQeBE)  2025-06-24T21:01Z [----] followers, [---] engagements


"F. Lr Insertion Level [--] [----] Upsolve Sheet [--] Stl's 1"  
[YouTube Link](https://youtube.com/watch?v=u-lTOzeWp-Q)  2024-10-17T16:26Z [---] followers, [--] engagements


"N. Welcome for you with Conditions Level [--] [----] - Upsolve Sheet [--] Data Types & Conditions (Wave 2)"  
[YouTube Link](https://youtube.com/watch?v=uwK3YMLvuRo)  2025-02-14T10:01Z [---] followers, [--] engagements


"Level [--] [----] Wave [--] - Upsolve Contest [--] Array & Strings Timestamps for Problems: Intro : 0:00 A. Sambosak War : 0:06 B. Amr's Diet Plan : 2:39 C. Bit Flip : 8:24 D. The Strongest in the Gym : 16:28 E. My World Peace : 21:33 F. Dr.Wael In Math : 28:36 Outro : 36:21"  
[YouTube Link](https://youtube.com/watch?v=vp1JrS6itCQ)  2025-03-03T23:00Z [---] followers, [--] engagements


"Level 0: Session [--] Functions & Recursion (Final Session) (Wave 2) code Forces Group : https://codeforces.com/group/FxRb3fkQll/contests Slides : https://www.canva.com/design/DAGX4OPrPos/0pP7ELUZvtELFWta_9HlNA/editutm_content=DAGX4OPrPos&utm_campaign=designshare&utm_medium=link2&utm_source=sharebutton"  
[YouTube Link](https://youtube.com/watch?v=x40Zn70Y48E)  2025-04-15T13:36Z [---] followers, [--] engagements


"A. Recursion Print Level [--] [----] - Upsolve Sheet5 Recursion"  
[YouTube Link](https://youtube.com/watch?v=xtARfkdkqI4)  2024-12-13T10:30Z [---] followers, [--] engagements


"Level [--] [----] - Upsolve Contest [--] Loops & Time Complexity 00:00:00 Intro 00:00:06 Problem A 00:00:52 Problem B 00:06:36 Problem C 00:20:46 Problem D 00:30:58 Problem E 00:36:06 Problem F"  
[YouTube Link](https://youtube.com/watch?v=yqoNJC_A7OM)  2025-10-07T20:57Z [----] followers, [---] engagements


"Level [--] [----] - Upsolve Contest [--] Number Theory 00:00 Intro 00:07 Problem A 00:32 Problem B 05:24 Problem C 11:20 Problem D 15:20 Problem E 23:42 Problem F"  
[YouTube Link](https://youtube.com/watch?v=1ORPsHyahso)  2025-11-16T19:28Z [----] followers, [--] engagements


"Y. Two intervals Level [--] [----] - Upsolve Sheet [--] Data Types and Conditions ( Wave [--] )"  
[YouTube Link](https://youtube.com/watch?v=1tavs9LjnYA)  2025-02-14T10:00Z [---] followers, [--] engagements


"Codeforces Round [----] (Div. 4) Upsolve from A to G (Arabic)  Time Line: A 0:00 B 1:49 C 4:29 D 12:00 E 20:25 F 29:43 G 41:30 Solutions: A: https://codeforces.com/contest/2185/submission/358469905 B: https://codeforces.com/contest/2185/submission/358474029 C: https://codeforces.com/contest/2185/submission/358489263 D Solution 1: https://codeforces.com/contest/2185/submission/358652386 D Solution 2: https://codeforces.com/contest/2185/submission/358513574 E: https://codeforces.com/contest/2185/submission/358558212 F: https://codeforces.com/contest/2185/submission/358591302 G:"  
[YouTube Link](https://youtube.com/watch?v=4DMiEUFHffA)  2026-01-18T23:26Z [----] followers, [---] engagements


"F. Help Boo Level [--] [----] - Upsolve Sheet [--] Data Types & Conditions ( Wave [--] )"  
[YouTube Link](https://youtube.com/watch?v=5EJy95Rtnxk)  2025-02-14T10:00Z [---] followers, [--] engagements


"Level [--] [----] Wave [--] - Upsolve Contest [--] STL (Linear Containers) 0:00 Intro 0:10 Problem E: Notifications 22:48 Problem B: Card War 38:10 Problem D: Neymar Jr 52:23 Problem C: Unlucky Person 1:00:17 Problem A: El-Kalba El-S3rana 1:05:28 Outro"  
[YouTube Link](https://youtube.com/watch?v=5n8nRIIANlE)  2025-02-15T11:04Z [---] followers, [--] engagements


"Upsolve Sheet [--] - STLs (Non Linear Containers) Level [--] [----] ( Wave [--] ) Sheets Link : https://vjudge.net/group/fehu-cpc-lvl1 Timestamps for Problems: Intro : 0:00 Problem A. Power Walking : 0:06 Problem B. Andryusha and Socks : 11:45 Problem C. Bulbs : 22:48 Problem D. Indian Summer : 34:38 Problem E. Restoring Password : 38:57 Problem F. Distinct Numbers : 51:35 Problem G. Powering the Hero (hard version) : 54:15 Problem H. Inversions : 1:03:24 Problem I. Progressive Square : 1:06:48 Problem J. Registration System : 1:23:18 Problem K. Chat Order : 1:27:26 Problem L. Double Strings : 1:32:55"  
[YouTube Link](https://youtube.com/watch?v=6Ip1KEUG7o0)  2025-02-23T21:13Z [---] followers, [--] engagements


"A. Basic Data Types Level [--] [----] - Upsolve Sheet [--] Data Types & Conditions ( Wave [--] )"  
[YouTube Link](https://youtube.com/watch?v=8pM-ckQuVTs)  2025-02-14T10:00Z [---] followers, [--] engagements


"B. Odd Swap Sort Level [--] [----] - Upsolve Sheet [--] STLs (Linear Containers)"  
[YouTube Link](https://youtube.com/watch?v=9R52IUld0FY)  2025-02-14T11:00Z [---] followers, [--] engagements


"B. Piece Harmony Level [--] [----] - Upsolve Contest [--] Data Types & Conditions ( Wave [--] )"  
[YouTube Link](https://youtube.com/watch?v=AvnFGG37cE4)  2025-02-14T20:42Z [---] followers, [--] engagements


"C. Basic Calculator Level [--] [----] - Upsolve Sheet [--] Data Types & Conditions ( Wave [--] )"  
[YouTube Link](https://youtube.com/watch?v=CXi4DUJ2Efo)  2025-02-14T10:00Z [---] followers, [--] engagements


"Level [--] [----] - Upsolve Contest [--] Bitmask 00:00 Intro 00:06 Problem A 01:17 Problem B 11:57 Problem C 16:20 Problem D 29:54 Problem E 32:57 Problem F"  
[YouTube Link](https://youtube.com/watch?v=FuWvmgv9O9I)  2025-12-03T12:55Z [----] followers, [--] engagements


"Upsolve Contest [--] - Loops & Time Complexity Level [--] 2025(Wave2) Timestamps for Problems: Intro : 0:00 A. Ramadan Schedule : 0:06 B. Male and Female queue : 1:39 C. Unlucky Points : 6:49 D. Fly and Reach : 20:05 E. Binary challenge : 26:10 F. Amr and the GradeCalculator : 35:09 Outro : 39:04"  
[YouTube Link](https://youtube.com/watch?v=H7tgKKMiIqg)  2025-02-21T20:30Z [---] followers, [--] engagements


"Level 0: session [--] Loops & Time Complexity (Wave 2)"  
[YouTube Link](https://youtube.com/watch?v=HkfEXol5MLA)  2025-02-16T11:31Z [---] followers, [---] engagements


"D. KG2 Level [--] [----] - Upsolve Sheet [--] Data Types & Conditions ( Wave [--] )"  
[YouTube Link](https://youtube.com/watch?v=IfNxmVWDDB8)  2025-02-14T10:00Z [---] followers, [--] engagements


"C. Piece Harmony Level [--] [----] - Upsolve Contest [--] Data Types & Conditions ( Wave [--] )"  
[YouTube Link](https://youtube.com/watch?v=Ipbb95hCp2Q)  2025-02-14T20:45Z [---] followers, [--] engagements


"Codeforces Round [----] (Div. 3) Upsolve from A to F (Arabic)  Time Line: A 0:00 B 2:30 C1 6:19 C2 16:21 E 22:00 D 35:19 F 50:23 Solutions: A: https://codeforces.com/contest/2171/submission/349994646 B: https://codeforces.com/contest/2171/submission/349994629 C1: https://codeforces.com/contest/2171/submission/349980757 C2: https://codeforces.com/contest/2171/submission/349981674 D: https://codeforces.com/contest/2171/submission/349992789 E: https://codeforces.com/contest/2171/submission/349999278 F: https://codeforces.com/contest/2171/submission/349994566"  
[YouTube Link](https://youtube.com/watch?v=IvS0oPktteA)  2025-11-20T23:33Z [----] followers, [---] engagements


"U. Catch Overflow Level [--] [----] - Upsolve Sheet [--] STLs (Linear Containers)"  
[YouTube Link](https://youtube.com/watch?v=JFt4hRvc3a0)  2025-02-14T11:00Z [---] followers, [--] engagements


"L. Hard Math Level [--] [----] - Upsolve Sheet [--] Data Types & Conditions ( Wave [--] )"  
[YouTube Link](https://youtube.com/watch?v=Jw0QZ4-Q-KU)  2025-02-14T10:00Z [---] followers, [--] engagements


"E. Is It [---] Level [--] [----] - Upsolve Sheet [--] Data Types & Conditions ( Wave [--] )"  
[YouTube Link](https://youtube.com/watch?v=KkZkMgnJedw)  2025-02-14T10:00Z [---] followers, [--] engagements


"K. Too Easy Problems Level [--] [----] - Upsolve Sheet [--] Data Types & Conditions ( Wave [--] )"  
[YouTube Link](https://youtube.com/watch?v=L7vdL9JyfaA)  2025-02-14T10:00Z [---] followers, [--] engagements


"F. XY Convex Level [--] [----] - Upsolve Contest [--] Data Types & Conditions ( Wave [--] )"  
[YouTube Link](https://youtube.com/watch?v=LrXggXZDc5I)  2025-02-14T20:45Z [---] followers, [--] engagements


"Upsolve Sheet [--] - Loops & Time Complexity Level [--] [----] ( Wave [--] ) Timestamps for Problems: Intro : 0:00 Problem A. Counting Journey : 0:06 Problem B. Even Odd Positive and Negative : 1:20 Problem C. One Prime : 3:35 Problem D. Factorial : 9:37 Problem E. Salek or Unsalek : 13:23 Problem F. The Uber ride : 21:26 Problem G. Digits : 31:40 Problem H. Super Gemy : 38:40 Problem I. All for zero : 49:52 Problem J. Unlucky Trainee : 55:20 Problem K. Multiplication table : 1:04:42 Problem L. Shape1 : 1:07:36 Problem M. Shape2 : 1:10:12 Problem N. Numbers Histogram : 1:17:42 Problem O. Fixed Password"  
[YouTube Link](https://youtube.com/watch?v=M0lLicofxS0)  2025-02-21T14:46Z [---] followers, [---] engagements


"Level [--] [----] - Upsolve Contest [--] Binary Search A 00:00:00 B 00:17:38 C 00:33:34 D 01:01:42 E 01:08:33 F 01:20:18"  
[YouTube Link](https://youtube.com/watch?v=NDZ9XKAsLVA)  2025-10-19T13:41Z [----] followers, [--] engagements


"Level 1: Session [--] STL Linear Containers (Wave 2) Sheet Link : https://vjudge.net/group/fehu-cpc-lvl1 0:00 - Introduction to STL (Standard Template Library) Overview of STL and its significance in C++ programming. 1:54 - Motivation for Using STL Why STL is essential for competitive programming and software development. Benefits of using STL over traditional approaches. 12:23 - Introduction to Templates Explanation of templates and their role in generic programming. Examples demonstrating the flexibility of templates. 17:48 - Vectors In-depth discussion on std::vector and its functionalities."  
[YouTube Link](https://youtube.com/watch?v=Ns0p7GcXqug)  2025-02-09T22:58Z [---] followers, [---] engagements


"A. T-Shirts Level [--] [----] - Upsolve Contest [--] Data Types & Conditions ( Wave [--] )"  
[YouTube Link](https://youtube.com/watch?v=Qze_L72R8H0)  2025-02-14T20:45Z [---] followers, [--] engagements


"Level 2: session [--] Combinatorics -Session Time Line: 00:00 Basic Counting 35:10 Inclusion & Exclusion 51:23 Permutations & Combinations 1:12:08 Code 1:24:39 Pascal Triangle 1:36:50 Code 1:50:03 Precompute Factorials & Inverse Factorial 2:01:00 Problem: Creating Strings 2:07:15 Problem: C. Beautiful Numbers 2:29:30 Number of paths in a grid 2:40:27 Stars & Bars 3:01:18 Problem: Roaming 3:35:23 Pigeon Hole Principle 3:43:25 Problem: C. Kuroni and Impossible Calculation 3:59:38 Problem: Two Knights (Basic Counting) 4:13:06 Problem: Number of Ways Code-chef (Combinations) 4:34:32 Problem:"  
[YouTube Link](https://youtube.com/watch?v=Rn3op2LZEoM)  2025-02-21T12:44Z [---] followers, [--] engagements


"L. Forest Coin Conundrum Level [--] [----] - Upsolve Sheet [--] Loops & Time Complexity"  
[YouTube Link](https://youtube.com/watch?v=SRN3HEdFHcA)  2024-10-20T09:18Z [----] followers, [--] engagements


"Level 1: Session [--] Number Theory (Wave 2) 0:00 Intro 8:25 Divisors 28:12 Problem A: Aliquot Sum 34:31 Primality Test 43:43 The Sieve of Eratosthenes 1:11:38 Harmonic Series 1:31:08 Problem B: Noldbach problem 1:42:02 Divisors Sieve 2:03:52 Prime Factorization 2:39:29 Sieve SPF (Smallest Prime Factor) 3:02:21 Problem C : Ingenious Agriculture 3:26:47 GCD/LCM Using Prime Factorization 3:39:35 Euclidean GCD 3:56:10 Problem D: K-Rounding 4:00:32 Final Advice & Conclusion"  
[YouTube Link](https://youtube.com/watch?v=SaDUMLNSWmw)  2025-02-26T19:25Z [---] followers, [---] engagements


"E. Ismail and the Mysterious Decimal Level [--] [----] Upsolve Contest [--] Data Type & Condition (Wave 2)"  
[YouTube Link](https://youtube.com/watch?v=VKfsycPwoSw)  2025-02-14T20:45Z [---] followers, [--] engagements


"G. OM Ali Level [--] [----] - Upsolve Sheet [--] Data Types & Conditions ( Wave [--] )"  
[YouTube Link](https://youtube.com/watch?v=YDYXzh9WuYQ)  2025-02-14T10:00Z [---] followers, [--] engagements


"V. The Best Level [--] [----] - Upsolve Sheet [--] Data Types and Conditions ( Wave [--] )"  
[YouTube Link](https://youtube.com/watch?v=aPAST47hb9U)  2025-02-14T10:00Z [---] followers, [--] engagements


"Level [--] [----] - Upsolve Contest [--] Adhocs & Two Pointers 00:17:45 Problem B 00:23:03 Problem C 00:30:45 Problem D 00:40:50 Problem E 00:53:50 problem F"  
[YouTube Link](https://youtube.com/watch?v=aX_dPaFnds4)  2025-11-25T00:07Z [----] followers, [--] engagements


"Q. First digit  Level [--] [----] - Upsolve Sheet [--] Data Types & Conditions ( Wave [--] )"  
[YouTube Link](https://youtube.com/watch?v=bdHH46-xJXw)  2025-02-14T10:00Z [----] followers, [--] engagements


"P. Zara & Yara Level [--] [----] - Upsolve Sheet [--] Data Types & Conditions ( Wave [--] )"  
[YouTube Link](https://youtube.com/watch?v=bp2XaoTO7Hc)  2025-02-14T10:00Z [---] followers, [--] engagements


"N. Incinerate Level [--] [----] - Upsolve Sheet [--] STLs Linear Containers"  
[YouTube Link](https://youtube.com/watch?v=cp66J1lI2Tk)  2025-02-14T11:00Z [---] followers, [--] engagements


"B. Difference Level [--] [----] - Upsolve Sheet [--] Data Types & Conditions ( Wave [--] )"  
[YouTube Link](https://youtube.com/watch?v=dGbQvcVL8cg)  2025-02-14T10:00Z [---] followers, [--] engagements


"M. The last [--] digits Level [--] [----] - Upsolve Sheet [--] Data Types & Conditions ( Wave [--] )"  
[YouTube Link](https://youtube.com/watch?v=fDaJhBWstFg)  2025-02-14T10:00Z [---] followers, [--] engagements


"D. Koshary Level [--] [----] - Upsolve Contest [--] Data Types & Conditions ( Wave [--] )"  
[YouTube Link](https://youtube.com/watch?v=fXy-W0OXXT0)  2025-02-14T20:45Z [---] followers, [--] engagements


"H. Fair Enough Level [--] [----] - Upsolve Sheet [--] Data Types & Conditions ( Wave [--] )"  
[YouTube Link](https://youtube.com/watch?v=fc41ONk5-B8)  2025-02-14T10:00Z [---] followers, [--] engagements


"Level 0: session [--] Arrays & Strings (Wave 2) Group Link on Codeforces : https://codeforces.com/group/FxRb3fkQll/contests"  
[YouTube Link](https://youtube.com/watch?v=h09iXi9Ozrk)  2025-02-23T05:00Z [---] followers, [---] engagements


"Level [--] [----] - Upsolve Qualification Contest Codeforces Group Link: https://codeforces.com/group/0xSZcQ8yCD/contests Intro : 00:00 Problem B: 00:06 Problem C: 09:09 Problem D: 25:39 Problem E: 39:43 Problem F: 49:27 Problem G: 58:14 Problem H: 1:11:26 Problem I: 1:39:33 Problem J: 1:54:14 Problem K: 2:12:20 Problem L: 2:21:22 Problem M: 2:30:59 Problem N: 2:46:20 Problem O: 3:04:11"  
[YouTube Link](https://youtube.com/watch?v=hoMmbxG76l4)  2025-12-08T22:01Z [----] followers, [---] engagements


"Level [--] [----] - Upsolve Contest [--] Ad-Hocs 00:00 intro 00:05 Problem A 00:25 Problem B 05:44 Problem C 15:09 Problem D 21:04 Problem E 25:57 Problem F 29:20 outro"  
[YouTube Link](https://youtube.com/watch?v=iM_261Dt9RU)  2025-11-21T12:13Z [----] followers, [--] engagements


"I. Almost Rectangle Level [--] [----] - Upsolve Sheet [--] Data Types & Conditions ( Wave [--] )"  
[YouTube Link](https://youtube.com/watch?v=kXbdTsquCU8)  2025-02-14T10:00Z [---] followers, [--] engagements


"Codeforces Round [----] (Div. 3) Upsolve from A to E (Arabic)  Timeline: A: 0:00 B: 13:00 C: 36:50 D: 57:49 E: 1:18:22 Solutions: Problem A: https://codeforces.com/contest/2162/submission/344202636 Problem B: https://codeforces.com/contest/2162/submission/344211966 Problem C: https://codeforces.com/contest/2162/submission/344220815 Problem D: https://codeforces.com/contest/2162/submission/344279383 Problem E: https://codeforces.com/contest/2162/submission/344336436"  
[YouTube Link](https://youtube.com/watch?v=oGNJVomUqeY)  2025-10-17T20:06Z [----] followers, [---] engagements


"A. Sereja and Dima Level [--] [----] - Upsolve Sheet [--] STLs (Linear Containers)"  
[YouTube Link](https://youtube.com/watch?v=owFnzY8kars)  2025-02-14T11:01Z [---] followers, [--] engagements


"T. Guess what Level [--] [----] - Upsolve Sheet [--] Data Types and Conditions ( Wave [--] )"  
[YouTube Link](https://youtube.com/watch?v=py6ZmzkVxR0)  2025-02-14T10:00Z [---] followers, [--] engagements


"Level 1: Session [--] STL Non Linear Containers (Wave 2) "Heres the code for an ordered set implementation. You can check it out on Ideone: https://ideone.com/4saiDb" Sheet Link : https://vjudge.net/group/fehu-cpc-lvl1 0:00 Intro 1:02 Priority Queue 17:34 Problem A: Potions (Hard Version) (Codeforces 1562C2) 43:32 Set 1:05:42 Problem B: Update Queries (Codeforces 1986C) 1:25:05 Unordered Set 1:31:20 Multiset 1:39:46 Map 1:53:45 Problem C: Gorilla and the Exam (Codeforces 2057B) 2:16:57 MultiMap 2:20:47 Order Set 2:37:44 Problem D: Greetings (Codeforces 1915F) 2:53:21 Final Advice & Conclusion"  
[YouTube Link](https://youtube.com/watch?v=qelTJh4UtXU)  2025-02-16T16:20Z [---] followers, [---] engagements


"Codeforces Round [----] (Div. 2) Upsolve from A to D2 (Arabic)  Time Line: A 0:00 B 6:28 C 13:32 D1 23:14 D2 35:50 Solutions: A: https://codeforces.com/contest/2191/submission/358264836 B: https://codeforces.com/contest/2191/submission/358284721 C: https://codeforces.com/contest/2191/submission/358299998 D1: https://codeforces.com/contest/2191/submission/358386835 D2: https://codeforces.com/contest/2191/submission/358381941 Codeforces Profile: https://codeforces.com/profile/_SHAHIN"  
[YouTube Link](https://youtube.com/watch?v=uW2S3DA91iM)  2026-01-17T21:34Z [----] followers, [---] engagements


"Level [--] [----] - Upsolve Contest [--] General 00:00 intro 00:05 Problem A 3:01 Problem B 6:34 Problem C 9:55 Problem D 13:48 Problem E 20:08 Problem F 25:52 outro"  
[YouTube Link](https://youtube.com/watch?v=vnyiVtbA3F0)  2025-11-29T21:33Z [----] followers, [--] engagements


"H. 2D SORT Level [--] [----] - Upsolve Sheet [--] STLs (Linear Containers)"  
[YouTube Link](https://youtube.com/watch?v=xXoaHWtkeQY)  2025-02-13T22:00Z [---] followers, [--] engagements


"J. Be Quick Level [--] [----] - Upsolve Sheet [--] Data Types & Conditions ( Wave [--] )"  
[YouTube Link](https://youtube.com/watch?v=y11PW1f_5dI)  2025-02-14T10:01Z [---] followers, [--] engagements


"Codeforces Round [----] (Div. 2) Upsolve from A to D (Arabic)  Time Line A 0:00 B 7:08 C 24:50 D 42:48 Codeforces Handle: https://codeforces.com/profile/_SHAHIN"  
[YouTube Link](https://youtube.com/watch?v=z9f-KYgpJYE)  2025-11-10T23:40Z [----] followers, [---] engagements


"Codeforces Round [----] (Div. 2) Upsolve from A to E1 (Arabic)  Time Line A 0:00 B 4:53 C 13:36 D 27:35 E 37:58 Solutions A: https://codeforces.com/contest/2197/submission/362415102 B: https://codeforces.com/contest/2197/submission/362427072 C: https://codeforces.com/contest/2197/submission/362463377 D: https://codeforces.com/contest/2197/submission/362496809 E1: https://codeforces.com/contest/2197/submission/362526852 Codeforces Profile: https://codeforces.com/profile/_SHAHIN"  
[YouTube Link](https://youtube.com/watch?v=Bq_Ago_6Q94)  2026-02-11T21:39Z [----] followers, [---] engagements


"Level 0: Session [--] Data Types & Conditions (Wave 2)"  
[YouTube Link](https://youtube.com/watch?v=DZIa1iP4HqM)  2026-02-10T12:01Z [----] followers, [--] engagements


"Level [--] : Session [--] Data Types & Conditions (Wave 2) Slides: https://drive.google.com/file/d/1E6pbwISot7rLucd-4OkNCJ4WiqO3naMa/viewusp=sharing Notes: https://drive.google.com/file/d/1sXhip7ZAgIGTPREDVZp2Bma0DrwC-NiU/viewusp=sharing Facebook : https://www.facebook.com/share/181JVLLPab/ LinkedIn :https://www.linkedin.com/company/icpcfehutrk=public_post_feed-actor-image"  
[YouTube Link](https://youtube.com/watch?v=Ee6GtYQB76M)  2026-02-10T15:44Z [----] followers, [---] engagements


"Codeforces Round [----] (Div. 2) Upsolve from A to D (Arabic)  Time Line: A 0:00 B 7:46 C 19:08 D 32:09 Solutions A: https://codeforces.com/contest/2188/submission/360489152 B: https://codeforces.com/contest/2188/submission/360510908 C: https://codeforces.com/contest/2188/submission/360551111 D: https://codeforces.com/contest/2188/submission/360600522 Codeforces Profile: https://codeforces.com/profile/_SHAHIN"  
[YouTube Link](https://youtube.com/watch?v=GIvVHXP7pd0)  2026-01-29T20:14Z [----] followers, [---] engagements


"Level 1: Session [--] STL Linear Containers (Wave 2) Codeforces Group: https://codeforces.com/group/ReFSrxJSp9/contests Slides Link: https://drive.google.com/file/d/1rnUjOe9Gnj-W2zHC-BujlaHYLZgtg8tB/viewusp=sharing 00:00 Introduction 08:40 Vector 01:39:16 Deque 01:57:18 Pair 02:35:25 Queue 02:46:18 Stack Facebook : https://www.facebook.com/share/181JVLLPab/ LinkedIn :https://www.linkedin.com/company/icpcfehutrk=public_post_feed-actor-image"  
[YouTube Link](https://youtube.com/watch?v=wEub4B71kHA)  2026-02-08T14:42Z [----] followers, [---] engagements


"Level [--] 2026(Wave 2) - Upsolve Contest [--] STL (Linear Containers) 00:06 Problem A 01:12 Problem B 06:26 Problem C 10:20 Problem D 20:36 Problem E 27:27 Problem F Slides : https://www.youtube.com/redirectevent=video_description&redir_token=QUFFLUhqbXFrQmRYMW16d3p4b3lYd3NLaXM5WHgtVVFHd3xBQ3Jtc0tsQUZITGpLbjl2b1BvVmFaS3ZPQmJOb3N6YWpqNWtTMFJabFhfU2VqOF9UeWJ6TUdmbjdHZXctX1VHWU5oT2NJMUQ3TUdTcnFqendOTDZ0XzNWRzMtV25GdTREMkpBRDlkYVA0cjVGRmVybFpYSWozcw&q=https%3A%2F%2Fdrive.google.com%2Ffile%2Fd%2F1rnUjOe9Gnj-W2zHC-BujlaHYLZgtg8tB%2Fview%3Fusp%3Dsharing&v=wEub4B71kHA Facebook :"  
[YouTube Link](https://youtube.com/watch?v=OLxjreKSxRU)  2026-02-15T11:13Z [----] followers, [--] engagements


"Level [--] 2026(Wave 2) - Sheet [--] Upsolve STLs [--] 00:00:06 Problem A 00:04:46 Problem B 00:09:18 Problem C 00:13:26 Problem D 00:17:19 Problem E 00:24:50 Problem F 00:35:02 Problem G 00:44:02 Problem H 00:57:05 Problem I 01:10:21 Problem J 01:22:43 Problem K 01:26:25 Problem L 01:39:20 Problem M 01:44:54 Problem N 01:50:24 Problem O 01:54:26 Problem P 02:02:02 Problem Q 02:06:55 Problem R 02:11:56 Problem S 02:17:50 Problem T Slides :"  
[YouTube Link](https://youtube.com/watch?v=apLE1jm2JlA)  2026-02-15T15:54Z [----] followers, [--] engagements


"Level: [--] Session [--] STLs Non-Linear Containers (wave 2) Codeforces Group Link: https://codeforces.com/group/ReFSrxJSp9/contests Slides Link: https://drive.google.com/file/d/1yAwJmxUsr4XRf8CKgV5JXFyPpUyCAoaM/viewusp=drivesdk 00:00 Set 42:20 Multi-Set 55:45 Unordered-Set 1:07:33 Problem A 1:20:22 Map 1:51:39 Unordered-Map 1:57:41 Multi-Map 2:04:26 Problem B 2:22:02 Priority Queue 2:32:46 Problem C 2:46:00 Ordered Set 2:56:41 Multi Ordered Set Facebook : https://www.facebook.com/share/181JVLLPab LinkedIn : https://www.linkedin.com/company/icpcfehutrk=public_post_feed-actor-image"  
[YouTube Link](https://youtube.com/watch?v=i86yma6UNck)  2026-02-17T05:25Z [----] followers, [--] engagements


"Level [--] 2026(Wave 2) - Upsolve Contest [--] Data Types & Conditions 00:06 Problem B 04:50 Problem C 18:05 Problem D 20:49 Problem E 29:26 Problem F Slides: https://www.youtube.com/redirectevent=video_description&redir_token=QUFFLUhqbEU2RkttWkNuY1NkUmpOM290bFlQaWt1RjltQXxBQ3Jtc0trMURUbWxpY2VHSm9YLUQxY1p4ZjRHX3FYWmFaRDI3dEhGMTBLNXJzVGxJLWZabkExSnNKcjJmNGpzRzFza05mVUxfOWM1Q0RlbjNQN2dLZkFLTkpra2VUX1V1aV9EMG12ZVZmM2JLS3ZhazJJb0pYOA&q=https%3A%2F%2Fdrive.google.com%2Ffile%2Fd%2F1rnUjOe9Gnj-W2zHC-BujlaHYLZgtg8tB%2Fview%3Fusp%3Dsharing&v=wEub4B71kHA Facebook :"  
[YouTube Link](https://youtube.com/watch?v=zkptYo7ilcE)  2026-02-14T21:29Z [----] followers, [--] engagements


"Level: [--] Session [--] STLs Non-Linear Containers (wave 2) Codeforces Group Link: https://codeforces.com/group/ReFSrxJSp9/contests Slides Link: https://drive.google.com/file/d/1yAwJmxUsr4XRf8CKgV5JXFyPpUyCAoaM/viewusp=drivesdk 00:00 Set 42:20 Multi-Set 55:45 Unordered-Set 1:07:33 Problem A 1:20:22 Map 1:51:39 Unordered-Map 1:57:41 Multi-Map 2:04:26 Problem B 2:22:02 Priority Queue 2:32:46 Problem C 2:46:00 Ordered Set 2:56:41 Multi Ordered Set Facebook : https://www.facebook.com/share/181JVLLPab LinkedIn : https://www.linkedin.com/company/icpcfehutrk=public_post_feed-actor-image"  
[YouTube Link](https://youtube.com/watch?v=i86yma6UNck)  2026-02-17T05:25Z [----] followers, [--] engagements


"Level [--] 2026(Wave 2) - Sheet [--] Upsolve STLs [--] 00:00:06 Problem A 00:04:46 Problem B 00:09:18 Problem C 00:13:26 Problem D 00:17:19 Problem E 00:24:50 Problem F 00:35:02 Problem G 00:44:02 Problem H 00:57:05 Problem I 01:10:21 Problem J 01:22:43 Problem K 01:26:25 Problem L 01:39:20 Problem M 01:44:54 Problem N 01:50:24 Problem O 01:54:26 Problem P 02:02:02 Problem Q 02:06:55 Problem R 02:11:56 Problem S 02:17:50 Problem T Slides :"  
[YouTube Link](https://youtube.com/watch?v=apLE1jm2JlA)  2026-02-15T15:54Z [----] followers, [--] engagements


"Level [--] 2026(Wave 2) - Upsolve Contest [--] STL (Linear Containers) 00:06 Problem A 01:12 Problem B 06:26 Problem C 10:20 Problem D 20:36 Problem E 27:27 Problem F Slides : https://www.youtube.com/redirectevent=video_description&redir_token=QUFFLUhqbXFrQmRYMW16d3p4b3lYd3NLaXM5WHgtVVFHd3xBQ3Jtc0tsQUZITGpLbjl2b1BvVmFaS3ZPQmJOb3N6YWpqNWtTMFJabFhfU2VqOF9UeWJ6TUdmbjdHZXctX1VHWU5oT2NJMUQ3TUdTcnFqendOTDZ0XzNWRzMtV25GdTREMkpBRDlkYVA0cjVGRmVybFpYSWozcw&q=https%3A%2F%2Fdrive.google.com%2Ffile%2Fd%2F1rnUjOe9Gnj-W2zHC-BujlaHYLZgtg8tB%2Fview%3Fusp%3Dsharing&v=wEub4B71kHA Facebook :"  
[YouTube Link](https://youtube.com/watch?v=OLxjreKSxRU)  2026-02-15T11:13Z [----] followers, [--] engagements


"Level [--] 2026(Wave 2) - Upsolve Contest [--] Data Types & Conditions 00:06 Problem B 04:50 Problem C 18:05 Problem D 20:49 Problem E 29:26 Problem F Slides: https://www.youtube.com/redirectevent=video_description&redir_token=QUFFLUhqbEU2RkttWkNuY1NkUmpOM290bFlQaWt1RjltQXxBQ3Jtc0trMURUbWxpY2VHSm9YLUQxY1p4ZjRHX3FYWmFaRDI3dEhGMTBLNXJzVGxJLWZabkExSnNKcjJmNGpzRzFza05mVUxfOWM1Q0RlbjNQN2dLZkFLTkpra2VUX1V1aV9EMG12ZVZmM2JLS3ZhazJJb0pYOA&q=https%3A%2F%2Fdrive.google.com%2Ffile%2Fd%2F1rnUjOe9Gnj-W2zHC-BujlaHYLZgtg8tB%2Fview%3Fusp%3Dsharing&v=wEub4B71kHA Facebook :"  
[YouTube Link](https://youtube.com/watch?v=zkptYo7ilcE)  2026-02-14T21:29Z [----] followers, [--] engagements


"Codeforces Round [----] (Div. 2) Upsolve from A to E1 (Arabic)  Time Line A 0:00 B 4:53 C 13:36 D 27:35 E 37:58 Solutions A: https://codeforces.com/contest/2197/submission/362415102 B: https://codeforces.com/contest/2197/submission/362427072 C: https://codeforces.com/contest/2197/submission/362463377 D: https://codeforces.com/contest/2197/submission/362496809 E1: https://codeforces.com/contest/2197/submission/362526852 Codeforces Profile: https://codeforces.com/profile/_SHAHIN"  
[YouTube Link](https://youtube.com/watch?v=Bq_Ago_6Q94)  2026-02-11T21:39Z [----] followers, [---] engagements


"Level [--] : Session [--] Data Types & Conditions (Wave 2) Slides: https://drive.google.com/file/d/1E6pbwISot7rLucd-4OkNCJ4WiqO3naMa/viewusp=sharing Notes: https://drive.google.com/file/d/1sXhip7ZAgIGTPREDVZp2Bma0DrwC-NiU/viewusp=sharing Facebook : https://www.facebook.com/share/181JVLLPab/ LinkedIn :https://www.linkedin.com/company/icpcfehutrk=public_post_feed-actor-image"  
[YouTube Link](https://youtube.com/watch?v=Ee6GtYQB76M)  2026-02-10T15:44Z [----] followers, [---] engagements


"Level 1: Session [--] STL Linear Containers (Wave 2) Codeforces Group: https://codeforces.com/group/ReFSrxJSp9/contests Slides Link: https://drive.google.com/file/d/1rnUjOe9Gnj-W2zHC-BujlaHYLZgtg8tB/viewusp=sharing 00:00 Introduction 08:40 Vector 01:39:16 Deque 01:57:18 Pair 02:35:25 Queue 02:46:18 Stack Facebook : https://www.facebook.com/share/181JVLLPab/ LinkedIn :https://www.linkedin.com/company/icpcfehutrk=public_post_feed-actor-image"  
[YouTube Link](https://youtube.com/watch?v=wEub4B71kHA)  2026-02-08T14:42Z [----] followers, [---] engagements


"Codeforces Round [----] (Div. 2) Upsolve from A to D (Arabic)  Time Line: A 0:00 B 7:46 C 19:08 D 32:09 Solutions A: https://codeforces.com/contest/2188/submission/360489152 B: https://codeforces.com/contest/2188/submission/360510908 C: https://codeforces.com/contest/2188/submission/360551111 D: https://codeforces.com/contest/2188/submission/360600522 Codeforces Profile: https://codeforces.com/profile/_SHAHIN"  
[YouTube Link](https://youtube.com/watch?v=GIvVHXP7pd0)  2026-01-29T20:14Z [----] followers, [---] engagements


"Codeforces Round [----] (Div. 4) Upsolve from A to G (Arabic)  Time Line: A 0:00 B 1:49 C 4:29 D 12:00 E 20:25 F 29:43 G 41:30 Solutions: A: https://codeforces.com/contest/2185/submission/358469905 B: https://codeforces.com/contest/2185/submission/358474029 C: https://codeforces.com/contest/2185/submission/358489263 D Solution 1: https://codeforces.com/contest/2185/submission/358652386 D Solution 2: https://codeforces.com/contest/2185/submission/358513574 E: https://codeforces.com/contest/2185/submission/358558212 F: https://codeforces.com/contest/2185/submission/358591302 G:"  
[YouTube Link](https://youtube.com/watch?v=4DMiEUFHffA)  2026-01-18T23:26Z [----] followers, [---] engagements


"Codeforces Round [----] (Div. 2) Upsolve from A to D2 (Arabic)  Time Line: A 0:00 B 6:28 C 13:32 D1 23:14 D2 35:50 Solutions: A: https://codeforces.com/contest/2191/submission/358264836 B: https://codeforces.com/contest/2191/submission/358284721 C: https://codeforces.com/contest/2191/submission/358299998 D1: https://codeforces.com/contest/2191/submission/358386835 D2: https://codeforces.com/contest/2191/submission/358381941 Codeforces Profile: https://codeforces.com/profile/_SHAHIN"  
[YouTube Link](https://youtube.com/watch?v=uW2S3DA91iM)  2026-01-17T21:34Z [----] followers, [---] engagements


"Level [--] [----] - Upsolve Qualification Contest Codeforces Group Link: https://codeforces.com/group/0xSZcQ8yCD/contests Intro : 00:00 Problem B: 00:06 Problem C: 09:09 Problem D: 25:39 Problem E: 39:43 Problem F: 49:27 Problem G: 58:14 Problem H: 1:11:26 Problem I: 1:39:33 Problem J: 1:54:14 Problem K: 2:12:20 Problem L: 2:21:22 Problem M: 2:30:59 Problem N: 2:46:20 Problem O: 3:04:11"  
[YouTube Link](https://youtube.com/watch?v=hoMmbxG76l4)  2025-12-08T22:01Z [----] followers, [---] engagements


"Level [--] [----] - Upsolve Contest [--] Bitmask 00:00 Intro 00:06 Problem A 01:17 Problem B 11:57 Problem C 16:20 Problem D 29:54 Problem E 32:57 Problem F"  
[YouTube Link](https://youtube.com/watch?v=FuWvmgv9O9I)  2025-12-03T12:55Z [----] followers, [--] engagements


"Level [--] [----] - Upsolve Contest [--] General 00:00 intro 00:05 Problem A 3:01 Problem B 6:34 Problem C 9:55 Problem D 13:48 Problem E 20:08 Problem F 25:52 outro"  
[YouTube Link](https://youtube.com/watch?v=vnyiVtbA3F0)  2025-11-29T21:33Z [----] followers, [--] engagements


"Level [--] [----] - Upsolve Contest [--] Adhocs & Two Pointers 00:17:45 Problem B 00:23:03 Problem C 00:30:45 Problem D 00:40:50 Problem E 00:53:50 problem F"  
[YouTube Link](https://youtube.com/watch?v=aX_dPaFnds4)  2025-11-25T00:07Z [----] followers, [--] engagements


"Level [--] [----] - Upsolve Contest [--] Ad-Hocs 00:00 intro 00:05 Problem A 00:25 Problem B 05:44 Problem C 15:09 Problem D 21:04 Problem E 25:57 Problem F 29:20 outro"  
[YouTube Link](https://youtube.com/watch?v=iM_261Dt9RU)  2025-11-21T12:13Z [----] followers, [--] engagements


"Codeforces Round [----] (Div. 3) Upsolve from A to F (Arabic)  Time Line: A 0:00 B 2:30 C1 6:19 C2 16:21 E 22:00 D 35:19 F 50:23 Solutions: A: https://codeforces.com/contest/2171/submission/349994646 B: https://codeforces.com/contest/2171/submission/349994629 C1: https://codeforces.com/contest/2171/submission/349980757 C2: https://codeforces.com/contest/2171/submission/349981674 D: https://codeforces.com/contest/2171/submission/349992789 E: https://codeforces.com/contest/2171/submission/349999278 F: https://codeforces.com/contest/2171/submission/349994566"  
[YouTube Link](https://youtube.com/watch?v=IvS0oPktteA)  2025-11-20T23:33Z [----] followers, [---] engagements


"Level [--] [----] - Upsolve Contest [--] Number Theory 00:00 Intro 00:07 Problem A 00:32 Problem B 05:24 Problem C 11:20 Problem D 15:20 Problem E 23:42 Problem F"  
[YouTube Link](https://youtube.com/watch?v=1ORPsHyahso)  2025-11-16T19:28Z [----] followers, [--] engagements


"Codeforces Round [----] (Div. 2) Upsolve from A to D (Arabic)  Time Line A 0:00 B 7:08 C 24:50 D 42:48 Codeforces Handle: https://codeforces.com/profile/_SHAHIN"  
[YouTube Link](https://youtube.com/watch?v=z9f-KYgpJYE)  2025-11-10T23:40Z [----] followers, [---] engagements


"Level [--] [----] - Upsolve Contest [--] Binary Search A 00:00:00 B 00:17:38 C 00:33:34 D 01:01:42 E 01:08:33 F 01:20:18"  
[YouTube Link](https://youtube.com/watch?v=NDZ9XKAsLVA)  2025-10-19T13:41Z [----] followers, [--] engagements


"Codeforces Round [----] (Div. 3) Upsolve from A to E (Arabic)  Timeline: A: 0:00 B: 13:00 C: 36:50 D: 57:49 E: 1:18:22 Solutions: Problem A: https://codeforces.com/contest/2162/submission/344202636 Problem B: https://codeforces.com/contest/2162/submission/344211966 Problem C: https://codeforces.com/contest/2162/submission/344220815 Problem D: https://codeforces.com/contest/2162/submission/344279383 Problem E: https://codeforces.com/contest/2162/submission/344336436"  
[YouTube Link](https://youtube.com/watch?v=oGNJVomUqeY)  2025-10-17T20:06Z [----] followers, [---] engagements


"Level [--] [----] - Upsolve Contest [--] Arrays && Strings 00:00 Intro 00:06 Problem A 01:55 Problem B 11:35 Problem C 20:30 Problem D 31:40 Problem E 42:13 Problem F"  
[YouTube Link](https://youtube.com/watch?v=f2Dfa2hlcBM)  2025-10-14T21:39Z [----] followers, [---] engagements


"Level [--] [----] - Upsolve Contest [--] STLs [--] 00:00 Intro 00:06 Problem A 02:07 Problem B 12:37 Problem C 15:54 Problem D 21:25 Problem E 25:57 Problem F"  
[YouTube Link](https://youtube.com/watch?v=iPo2WFDavlo)  2025-10-09T18:15Z [----] followers, [--] engagements


"Level [--] [----] - Upsolve Contest [--] Loops & Time Complexity 00:00:00 Intro 00:00:06 Problem A 00:00:52 Problem B 00:06:36 Problem C 00:20:46 Problem D 00:30:58 Problem E 00:36:06 Problem F"  
[YouTube Link](https://youtube.com/watch?v=yqoNJC_A7OM)  2025-10-07T20:57Z [----] followers, [---] engagements


"Level [--] [----] - Upsolve Contest [--] STL (Linear Containers) 00:00 Intro 00:06 Problem A 02:55 Problem B 14:53 Problem C 23:21 Problem D 36:02 Problem E 42:38 Problem F 49:14 Outro"  
[YouTube Link](https://youtube.com/watch?v=dh23Zy0Giyo)  2025-10-03T11:59Z [----] followers, [---] engagements


"Level [--] [----] - Upsolve Contest [--] Data Types & Conditions 00:00 Intro 00:15 Problem A 00:49 Problem B 4:45 Problem C 17:52 Problem D 26:37 Problem E 34:36 Problem F 50:27 Outro"  
[YouTube Link](https://youtube.com/watch?v=jOG7nFFdSTw)  2025-09-30T21:09Z [----] followers, [---] engagements


"Level [--] Kickoff '26 Training & Mindset Plan Codeforces 00:00 Intro 01:54 The Community System 35:50 Dealing with Codeforces 57:30 The Problem Solver Mindset 1:46:07 Level [--] content 1:49:21 Planning Your Time Effectively"  
[YouTube Link](https://youtube.com/watch?v=qVoLA6Cadmk)  2025-09-23T12:56Z [----] followers, [---] engagements


"Orientation Session'26 🟢 Intro & Background 00:00 Introduction 00:29 Who is Ashraf Taha 🧠 Problem Solving & Competitive Programming 02:04 What is problem solving 03:23 What is competitive programming 04:16 Problem solver vs. competitive programmer 06:41 What is ICPC 🚀 Getting Started 08:07 How to start with problem solving 10:46 What is Codeforces (Divisions explained) 13:27 Is rating really important 🤖 Future & Relevance 15:07 Can AI replace problem solvers 19:00 Technology vs. Problem Solving ⚖ Balance & Timing 28:50 When to say "enough" 30:00 Can I start problem solving at graduation"  
[YouTube Link](https://youtube.com/watch?v=NMCl364yKx0)  2025-09-14T14:57Z [----] followers, [---] engagements


"ECPC Preparations : How to Think Solve and Win as a Team 00:00 Introduction of the guest 01:32 How individuals prepare for ECPC 14:17 Team preparation strategies 21:00 Solving problems as a team in the gym 24:41 At the start of the contest 49:45 In the middle of the contest 56:25 The blind hour 1:02:15 Handling different contest scenarios 1:19:40 Memorable ECPC moments Community Facebook Page: https://www.facebook.com/ICPC.FEHU"  
[YouTube Link](https://youtube.com/watch?v=U8vRSRtH1BI)  2025-07-21T14:39Z [----] followers, [----] engagements


"Day [--] Solving CPC ECPC [----] Problem G problem link : https://codeforces.com/group/Rilx5irOux/contest/479246/problem/G"  
[YouTube Link](https://youtube.com/watch?v=bhYIxavOtzQ)  2025-06-28T21:00Z [----] followers, [---] engagements


"Day [--] Solving CPC ACPC [----] Problem A Problem Link: https://codeforces.com/group/Rilx5irOux/contest/511452/problem/A Solution: https://ideone.com/dqkz8x"  
[YouTube Link](https://youtube.com/watch?v=BiTcxOavEko)  2025-06-27T21:00Z [----] followers, [--] engagements


"Day [--] Solving CPC ECPC Qualifications [----] Day [--] Problem C problem link : https://codeforces.com/group/Rilx5irOux/contest/530045/problem/C"  
[YouTube Link](https://youtube.com/watch?v=hpszx2atcQM)  2025-06-26T21:00Z [----] followers, [--] engagements


"Day [--] Solving CPC ECPC Qualifications [----] Day [--] Problem B Problem Link: https://codeforces.com/group/Rilx5irOux/contest/534682/problem/B Solution: https://ideone.com/CBQrqh"  
[YouTube Link](https://youtube.com/watch?v=U7TkIFdtMOk)  2025-06-25T21:00Z [----] followers, [--] engagements


"Day [--] Solving CPC ECPC Qualifications [----] Day [--] Problem E problem Link : https://codeforces.com/group/Rilx5irOux/contest/538271/problem/E"  
[YouTube Link](https://youtube.com/watch?v=tfYebwgQeBE)  2025-06-24T21:01Z [----] followers, [---] engagements


"Day [--] - Solving CPC ECPC [----] Problem L Statement Link: https://codeforces.com/group/Rilx5irOux/contest/477876/problem/L Submission Link: https://codeforces.com/group/Rilx5irOux/contest/477876/submit Solution: https://ideone.com/WItAnL"  
[YouTube Link](https://youtube.com/watch?v=fv-vqnOW3Rc)  2025-06-23T21:22Z [----] followers, [--] engagements


"Day [--] - Solving CPC ACPC [----] Problem G Problem Link : https://codeforces.com/group/Rilx5irOux/contest/572352/problem/G"  
[YouTube Link](https://youtube.com/watch?v=qsEFOMdhw_E)  2025-06-22T20:59Z [----] followers, [---] engagements


"Upsolve Sheet [--] - Two Pointers and Adhocs Level [--] [----] ( Wave [--] )"  
[YouTube Link](https://youtube.com/watch?v=GmrgmIOXXSI)  2025-05-06T07:07Z [----] followers, [---] engagements


"Day [--] - Solving CPC ECPC [----] Problem B Problem Link : https://codeforces.com/group/Rilx5irOux/contest/477878/problem/B Community Facebook Page: https://www.facebook.com/ICPC.FEHU"  
[YouTube Link](https://youtube.com/watch?v=RY-zccewBqw)  2025-05-05T01:06Z [----] followers, [---] engagements


"Day [--] - Solving CPC ECPC Qualifications [----] Day [--] Problem D Problem Link : https://codeforces.com/group/Rilx5irOux/contest/538517/problem/D Community Facebook Page: https://www.facebook.com/ICPC.FEHU"  
[YouTube Link](https://youtube.com/watch?v=A04X6XWYtjM)  2025-05-03T21:00Z [----] followers, [---] engagements


"Day [--] - Solving CPC ECPC [----] Problem A Problem link : https://codeforces.com/group/Rilx5irOux/contest/477878/problem/A Community Facebook Page: https://www.facebook.com/ICPC.FEHU"  
[YouTube Link](https://youtube.com/watch?v=nPNS_VLQaFA)  2025-05-02T21:01Z [----] followers, [---] engagements


"Day [--] - Solving CPC ECPC Qualifications [----] Day [--] Problem J Problem link : https://codeforces.com/group/Rilx5irOux/contest/538517/problem/J Community Facebook Page: https://www.facebook.com/ICPC.FEHU"  
[YouTube Link](https://youtube.com/watch?v=Pqta6sIvxp8)  2025-05-01T21:00Z [----] followers, [---] engagements


"Day [--] - Solving CPC ECPC Qualifications [----] Day [--] Problem H Problem Link: https://codeforces.com/group/Rilx5irOux/contest/538098/problem/H Community Facebook Page: https://www.facebook.com/ICPC.FEHU"  
[YouTube Link](https://youtube.com/watch?v=Wq02wPToCWI)  2025-04-30T22:08Z [----] followers, [---] engagements


"Day [--] - Solving CPC ECPC Qualifications [----] Day [--] Problem M Problem Link: https://codeforces.com/group/Rilx5irOux/contest/538271/problem/M Community Facebook Page: https://www.facebook.com/ICPC.FEHU"  
[YouTube Link](https://youtube.com/watch?v=CRgYF8A7M_I)  2025-04-29T21:47Z [---] followers, [---] engagements


"Upsolve Sheet [--] - Bitmasks and Complete Search Level [--] [----] ( Wave [--] ) Timestamps for problems: Intro: 00:00 Problem A. Find Minimum Operations: 00:06 Problem B. XOR Mixup: 09:57 Problem C. NIT orz: 18:05 Problem D. Cirno's Perfect Bitmasks Classroom: 24:04 Problem E. XORwice: 35:09 Problem F. And Then There Were K: 43:44 Problem G. Bitwise Operators: 51:13 Problem H. AND Sorting: 1:01:53 Problem I. XOR and Triangle: 1:10:05 Problem J. XOR Palindromes: 1:14:55 Problem K. Boneca Ambalabu: 1:32:40 Problem L. Shohag Loves XOR (Easy Version): 1:44:21 Problem M. Dreamoon and WiFi: 1:50:13 Problem"  
[YouTube Link](https://youtube.com/watch?v=gdRwK4OtQBE)  2025-04-29T16:54Z [---] followers, [---] engagements


"Codeforces Round [----] (Div 4) - A to F"  
[YouTube Link](https://youtube.com/watch?v=7Ub2qR6mFCQ)  2025-04-29T15:24Z [---] followers, [---] engagements


"Level [--] [----] Wave [--] - Upsolve Sheet [--] Functions & Recursion Timestamps for Problems: Intro: 00:00 Problem A. Print: 00:06 Problem B. Prime Function: 02:47 Problem C. Wonderful Number: 10:00 Problem D. Exponential Series: 16:37 Problem E. Array Min-Max: 20:30 Problem F. Character Printing: 26:01 Problem G. Shift Right: 30:38 Problem H. Amr with Distinct: 39:57 Problem I. Shifting Zeros: 48:11 Problem J. Five in One: 57:27 Problem K. Print Even Indices: 1:19:18 Problem L. Summation: 1:24:37 Problem M. Digits Print: 1:28:54 Problem N. Fibonacci: 1:31:20 Problem O. Skibidi Table: 1:34:56 Problem"  
[YouTube Link](https://youtube.com/watch?v=KxsnA3ugzuc)  2025-04-29T14:39Z [---] followers, [--] engagements


"Day [--] - Solving CPC ACPC Kickoff [----] Problem M Problem Link: https://codeforces.com/group/Rilx5irOux/contest/528296/problem/M Community Facebook Page: https://www.facebook.com/ICPC.FEHU"  
[YouTube Link](https://youtube.com/watch?v=4hdd9oUgf0I)  2025-04-28T21:00Z [---] followers, [---] engagements


"New Series : Daily CPC Solves Community Facebook Page: https://www.facebook.com/ICPC.FEHU"  
[YouTube Link](https://youtube.com/watch?v=WA7tvY0dTQM)  2025-04-28T17:22Z [---] followers, [---] engagements


"Level [--] [----] Wave [--] - Upsolve Contest [--] Bitmasks Intro 0:00 Problem A. Mohandes Basmagyat 0:20 Problem B. Multiversal Xor 0:58 Problem C. Message Decoder 19:28 Problem D. Bitwise 3B3ATY 26:55 Problem E. Space Explorer 38:32"  
[YouTube Link](https://youtube.com/watch?v=8OsQOpoD5ao)  2025-04-28T12:43Z [---] followers, [--] engagements


"How to pay ECPC team fees"  
[YouTube Link](https://youtube.com/watch?v=AbaPfyQ5KZQ)  2025-04-26T17:12Z [---] followers, [---] engagements


"Level 1: Session [--] Two pointers & Ad-Hocs (Wave 2) Intro to Two pointers: 0:00 Is_Palindrome: 23:00 Problem A.Right Left Wrong : 29:16 Sliding Window "fixed size": 54:50 Problem B.Inaccurate Subsequence Search : 1:13:00 Horror House "easy version" : 1:48:48 Partial Sum : 2:03:35 2D Pref Sum : 2:16:50 2D Partial Sum : 2:41:35 Problem C.Photoshoot for Gorillas: 2:58:42 Final Advice & Conclusion : 3:20:45"  
[YouTube Link](https://youtube.com/watch?v=eiOnw0xGN0U)  2025-04-25T10:23Z [---] followers, [---] engagements

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